公开(公告)号：US20150344625A1

公开(公告)日：2015-12-03

申请号：US14722636

申请日：2015-05-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Takashi KINO ,  Hiroshi NAKASHIMA ,  Chan Jae AHN

IPC: C08G73/10

CPC classification number: C08G73/1067 ,  C08G73/1039 ,  C08G73/1042 ,  C08G73/14 ,  C08J5/18 ,  C08J2379/08 ,  C09D179/08

Abstract: A colorless transparent polyimide having a thickness of about 1 micrometer to about 250 micrometers, an average coefficient of thermal expansion measured in a machine direction and a transverse direction of less than or equal to about 80 parts per million/° C., an average in-plane retardation of less than or equal to about 20 nanometers, an average Yellowness Index of less than or equal to 6, and a transmittance for light at a wavelength of 370 nanometers to 740 nanometers of greater than or equal to about 80%.

Abstract translation: 具有约1微米至约250微米厚度的无色透明聚酰亚胺，在机器方向和横向方向上测量的平均热膨胀系数小于或等于约80ppm /℃，平均 平面延迟小于或等于约20纳米，平均黄度指数小于或等于6，以及在370纳米至740纳米波长的光的透射率大于或等于约80％。

公开(公告)号：US20150343689A1

公开(公告)日：2015-12-03

申请号：US14571475

申请日：2014-12-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Won CHOI ,  Jae Wook NAM ,  Byung Hee SOHN ,  Sun Jin SONG ,  Chan Jae AHN ,  Semi LEE ,  Sung Woo HONG

IPC: B29C47/14 ,  B29C47/92

CPC classification number: B29C47/14 ,  B29C47/0021 ,  B29C47/92 ,  B29C2947/926 ,  B29C2947/92904 ,  B29L2007/008

Abstract: A slot die includes a material distribution chamber configured to distribute a casting solution supplied to the material distribution chamber, and a lip in which a slot including an expansion portion is defined and through which the casting solution distributed in the material distribution chamber is discharged, where a width of the expansion portion taken in a first direction is expanded from one side of the expansion portion to a lip end facing the one side and the one side of the expansion portion is apart from the lip end by a predetermined length taken along a second direction which is perpendicular to the first direction and substantially parallel to a flow direction of the casting solution.

Abstract translation: 狭槽模具包括配置成分配供给到材料分配室的铸造溶液的材料分配室，以及限定了包括膨胀部的槽的唇部，分配在材料分配室内的铸造溶液通过该排出排出， 沿着第一方向截取的膨胀部分的宽度从膨胀部分的一侧膨胀到面向一侧的唇形端部，并且膨胀部分的一侧与唇缘端部沿第二方向分开预定长度 方向，其垂直于第一方向并且基本上平行于铸造溶液的流动方向。

公开(公告)号：US20150343700A1

公开(公告)日：2015-12-03

申请号：US14557081

申请日：2014-12-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sun Jin SONG ,  Hirosh NAKASHIMA ,  Byung Hee SOHN ,  Chan Jae AHN ,  Sung Woo HONG

IPC: B29C55/08 ,  B29C71/02

CPC classification number: B29C55/08 ,  B29C55/20 ,  B29C2793/0063

Abstract: A film manufacturing apparatus includes: a material supply unit which supplies an intermediate film; a pre-heating unit which pre-heats the intermediate film supplied from the material supply unit; a stretching unit which stretches and performs a first heat-treatment to the intermediate film supplied through the pre-heating unit; a heating treatment unit which performs a second heat-treatment to the stretched intermediate film supplied from the stretching unit; a clipping device which clips lateral ends of the intermediate film to transfer the intermediate film and applies a transverse directional tension to the intermediate film; and a cutting device disposed in at least one of the stretching unit and the heat-treatment unit, wherein the cutting device separates the lateral ends from a center portion of the intermediate film by cutting the intermediate film.

Abstract translation: 一种膜制造装置，包括：提供中间膜的材料供给单元; 预热单元，其对从所述材料供给单元供给的中间膜进行预热; 拉伸单元，其对通过预热单元供给的中间膜延伸并进行第一热处理; 加热处理单元，对从拉伸单元供给的拉伸中间膜进行第二热处理; 夹持装置，夹持中间膜的横向端部以转移中间膜并向中间膜施加横向张力; 以及设置在拉伸单元和热处理单元中的至少一个中的切割装置，其中切割装置通过切割中间膜将侧端与中间膜的中心部分分离。

公开(公告)号：US20170267821A1

公开(公告)日：2017-09-21

申请号：US15479532

申请日：2017-04-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Won CHOI ,  Chan Jae AHN ,  Sung Woo HONG ,  Won Suk CHANG ,  A Ra JO

IPC: C08J5/18 ,  C08G73/14 ,  C08G73/10 ,  C09D179/08

CPC classification number: C08J5/18 ,  C08G73/1039 ,  C08G73/1042 ,  C08G73/105 ,  C08G73/1067 ,  C08G73/1071 ,  C08G73/14 ,  C08J2379/08 ,  C09D179/08

Abstract: A method of producing a polyimide film, including obtaining a polyamic acid including a repeating unit of Chemical Formula 1: wherein Ar1 and Ar2 are described in the specification; imidizing the polyamic acid to obtain a partially imidized polyimide; determining a sub-Tg temperature of the partially imidized polyimide; and heating the partially imidized polyimide in at least two steps to obtain a polyimide film, wherein a step transition temperature range is within the sub-Tg temperature ±30° C.

公开(公告)号：US20170246773A1

公开(公告)日：2017-08-31

申请号：US15595298

申请日：2017-05-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Woo HONG ,  Woo-Jin BAE ,  Chan Jae AHN ,  Won Suk CHANG ,  A ra JO ,  Sung Won CHOI

IPC: B29C41/46 ,  B29C41/00 ,  C09D179/08 ,  C08G73/10 ,  C08G73/14 ,  C08L79/08 ,  B29C39/00 ,  B29D11/00

CPC classification number: B29C41/46 ,  B29C39/003 ,  B29C41/003 ,  B29D11/00788 ,  B29K2079/08 ,  C08G73/1039 ,  C08G73/1042 ,  C08G73/1067 ,  C08G73/14 ,  C08L79/08 ,  C09D179/08 ,  G02B1/041 ,  C08L33/24

Abstract: A method of preparing an optical film, preparing a coating composition including an amic acid-containing polymer represented by Chemical Formula 1 and at least one polymerization aid selected from an alkyl phosphite, an aryl phosphite, an alkyl phosphate, and an aryl phosphate; providing the coating composition on a substrate to form a coating layer; and applying heat to the coating layer to prepare a cured film: wherein, in Chemical Formula 1, are the same or different in each repeating unit, and are each independently at least one selected from an aromatic organic group, an aliphatic organic group, and an alicyclic organic group, and 0≦x≦1.